<template>
  <div class="container">
    <div class="app-container">
      <!-- 角色管理内容 -->
      <div class="role-operate">
        <el-button size="mini" type="primary" @click="showDialog = true">添加角色</el-button>
      </div>
      <!-- 放置table组件 -->
      <el-table :data="list">
        <!-- 放置列 -->
        <el-table-column prop="name" align="center" width="200" label="角色">
          <template v-slot="{ row }">
            <el-input v-if="row.isEdit" v-model="row.editRow.name" size="mini" />
            <span v-else>{{ row.name }}</span>
          </template>
        </el-table-column>
        <el-table-column prop="state" align="center" width="200" label="启用">
          <!-- 自定义列结构 -->
          <template v-slot="{ row }">
            <el-switch v-if="row.isEdit" v-model="row.editRow.state" :active-value="1" :inactive-value="0"
              size="mini" />
            <span v-else> {{ row.state === 1 ? "已启用" : row.state === 0 ? "未启用" : "无" }} </span>
          </template>
        </el-table-column>
        <el-table-column prop="description" align="center" label="描述">
          <template v-slot="{ row }">
            <el-input v-if="row.isEdit" v-model="row.editRow.description" size="mini" />
            <span v-else>{{ row.description }}</span>
          </template>
        </el-table-column>
        <el-table-column align="center" label="操作">
          <!-- 放置操作按钮 -->
          <template v-slot="{ row }">
            <template v-if="row.isEdit">
              <el-button size="mini" type="primary" @click="btnEditOK(row)">确定</el-button>
              <el-button size="mini" @click="row.isEdit = false">取消</el-button>
            </template>
            <template v-else>
              <el-button size="mini" type="text" @click="btnPermission(row.id)">分配权限</el-button>
              <el-button size="mini" type="text" @click="btnEditRow(row)">编辑</el-button>
              <el-popconfirm title="这是一段内容确定删除吗？" @onConfirm="confirmDel(row.id)">
                <el-button style="margin-left: 10px;" slot="reference" size="mini" type="text">删除</el-button>
              </el-popconfirm>
            </template>
          </template>
        </el-table-column>
      </el-table>
      <!-- 放置分页组件 -->
      <el-row type="flex" style="height:60px" align="middle" justify="end">
        <!-- 放置分页组件 -->
        <el-pagination :page-size="pageParams.pagesize" :current-page="pageParams.page" :total="pageParams.total"
          layout="prev, pager, next" @current-change="changePage" />
      </el-row>
    </div>
    <!-- 放置弹层 -->
    <el-dialog width="500px" title="新增角色" :visible.sync="showDialog" @close="btnCancel">
      <!-- 表单内容 -->
      <el-form ref="roleForm" :model="roleForm" :rules="rules" label-width="120px">
        <el-form-item prop="name" label="角色名称">
          <el-input v-model="roleForm.name" style="width:300px" size="mini" />
        </el-form-item>
        <el-form-item label="启用" prop="state">
          <!-- 重置表单数据 需要prop属性 -->
          <!-- 如果不需要校验 就不需要写 prop属性 -->
          <el-switch v-model="roleForm.state" :active-value="1" :inactive-value="0" size="mini" />
        </el-form-item>
        <el-form-item prop="description" label="角色描述">
          <el-input v-model="roleForm.description" type="textarea" :rows="3" style="width:300px" size="mini" />
        </el-form-item>
        <el-form-item>
          <el-row type="flex" justify="center">
            <el-col :span="12">
              <el-button type="primary" size="mini" @click="btnOK">确定</el-button>
              <el-button size="mini" @click="btnCancel">取消</el-button>
            </el-col>
          </el-row>
        </el-form-item>
      </el-form>
    </el-dialog>
    <!-- 放置权限弹层 -->
    <el-dialog title="分配权限" :visible.sync="showpermissionDialog">
      <!-- 树形控件 -->
      <el-tree check-strictly ref="permTree" :data="permissionData" node-key="id" :default-checked-keys="permIds"
        default-expand-all show-checkbox :props="{ label: 'name' }">
      </el-tree>
      <el-row slot="footer" type="flex" justify="center">
        <el-col :span="6">
          <el-button type="primary" size="mini" @click="assignPrem">确定</el-button>
          <el-button size="mini" @click="showpermissionDialog = false">取消</el-button>
        </el-col>
      </el-row>
    </el-dialog>
  </div>
</template>
<script>
import { getRoleList, addRole, updateRole, deleteRole, getRoleDetail, assignPrem } from '@/api/role'
import { getPermissionList } from '@/api/permission'
import { transListToTreeData } from '@/utils'
export default {
  name: 'Role',
  data() {
    return {
      list: [],
      showDialog: false, // 控制弹层显示隐藏
      // 将分页信息放置到一个对象中
      pageParams: {
        page: 1, // 第几页
        pagesize: 5, // 每页多少条
        total: 0
      },
      roleForm: {
        name: '',
        description: '',
        state: 0 // 默认未1启用 关闭 0 打开1
      },
      rules: {
        name: [{ required: true, message: '角色名称不能为空', trigger: 'blur' }],
        description: [{ required: true, message: '角色描述不能为空', trigger: 'blur' }]
      },
      showpermissionDialog: false,
      permissionData: [],
      currentRoleId: null,
      permIds: [] // 保存角色拥有的权限id
    }
  },
  created() {
    this.getRoleList()
  },
  methods: {
    async getRoleList() {
      const { rows, total } = await getRoleList(this.pageParams)
      this.list = rows // 赋值数据
      this.pageParams.total = total
      //针对每一行数据进行自定义操作
      this.list.forEach(item => {
        //item.isEdit = false // 新增数据时 设为false
        this.$set(item, 'isEdit', false) // 新增数据时 设为false
        this.$set(item, 'editRow', {
          name: item.name,
          description: item.description,
          state: item.state
        }) // 状态值转为布尔值
      })
    },
    // 切换分页时 请求新的数据
    changePage(newPage) {
      this.pageParams.page = newPage // 赋值当前页码
      this.getRoleList()
    },
    btnOK() {
      this.$refs.roleForm.validate(async isOK => {
        if (isOK) {
          await addRole(this.roleForm)
          this.$message.success('新增角色成功')
          this.getRoleList()
          this.btnCancel()
        }
      })
    },
    btnCancel() {
      this.$refs.roleForm.resetFields() // 重置表单数据
      this.showDialog = false // 关闭弹层
    },
    btnEditRow(row) {
      row.isEdit = true // 切换为编辑状态
      row.editRow.name = row.name // 复制原数据
      row.editRow.description = row.description
      row.editRow.state = row.state
    },
    async btnEditOK(row) {
      console.log(row.editRow);
      if (row.editRow.name && row.editRow.description) {
        await updateRole({ ...row.editRow, id: row.id })
        this.$message.success('修改角色成功')
        Object.assign(row, {
          ...row.editRow,
          isEdit: false
        }) // 更新数据
      } else {
        this.$message.warning('角色名称和描述不能为空')
      }
    },
    async confirmDel(id) {
      await deleteRole(id)
      this.$message.success('删除角色成功')
      if (this.list.length === 1)
        this.pageParams.page-- // 只有一行数据时 回到第一页
      this.getRoleList() // 刷新数据
    },
    async btnPermission(id) {
      this.currentRoleId = id // 保存当前角色id
      const { permIds } = await getRoleDetail(id) // 获取角色详情
      this.permIds = permIds // 保存角色拥有的权限
      this.permissionData = transListToTreeData(await getPermissionList(), 0)
      this.showpermissionDialog = true // 打开弹层
    },
    async assignPrem() {
      await assignPrem({ id: this.currentRoleId, permIds: this.$refs.permTree.getCheckedKeys() })
      this.$message.success('分配权限成功')
      this.showpermissionDialog = false // 关闭弹层
    }
  }
}
</script>
<style scoped>
.role-operate {
  padding: 10px;
}
</style>
